arch/arm-efika/boot/serialdebug.c

   1 /*
   2     Copyright © 2009-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <inttypes.h>
   7 #include <stdio.h>
   8 #include "serialdebug.h"
   9
  10 inline void waitBusy()
  11 {
  12         volatile uint32_t *uart = (uint32_t *)UART1_BASE_ADDR;
  13         while(!(uart[0x98 / 4] & (1 << 3)));
  14 }
  15
  16 inline void putByte(uint8_t chr)
  17 {
  18         volatile uint32_t *uart = (uint32_t *)UART1_BASE_ADDR;
  19         uart[0x10] = chr;
  20         if (chr == '\n')
  21                 uart[0x10] = '\r';
  22 }
  23
  24 void putBytes(const char *str)
  25 {
  26         while(*str)
  27         {
  28                 putByte(*str++);
  29                 waitBusy();
  30         }
  31 }
  32
  33 static char tmpbuf[512];
  34
  35 void kprintf(const char *format, ...)
  36 {
  37         char *out = tmpbuf;
  38         va_list vp;
  39
  40         va_start(vp, format);
  41         vsnprintf(tmpbuf, 511, format, vp);
  42         va_end(vp);
  43
  44         putBytes(out);
  45 }